AMD Athlon x4 870k Causing pc crash

[speedboost2023]

My amd athlon 870k recently has started to make my computer crash. It has been overheating ridiculously bad https://gyazo.com/86dd7d2d495abe2e674da76ac99b9334
I am using the stock cooler

 

[mdd1963]

Some thermal compounds solidify and lose their ability to transfer heat over time..

CLean heat shield and underside of heatsink thoroughly, and apply new thermal compound sparingly....